Brick-machine



(No Model.) 2 Sheets-Sheet 1. L. B. KENNEDY.

BRICK MACHINE.

No. 414,055. Patented Oct. 29, 1889.

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(No Model.) 2 SheetsSheet 2.

L. B. KENNEDY.

I BRICK MACHINE. No. 414,055. Patented Oct. 29, 1889.

MA/[messes fame zziww ww q 17.5. /fenezeif UNITED STATES PATENT OFFICE.

LElVIS B. KENNEDY, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE KENNEDY DRY PRESS BRICK MACHINE MANUFACTURING COMPANY, OF PUEBLO,

COLORADO.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 414,055, dated October 29, 1889.

Application filed September 5, 1889. Serial No. 323,024. (No model.)

To all whom it may concern:

Be it known that I, LEWIS B. KENNEDY, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented new and useful Improvements in Brick-Machines; and I do hereby declare the following to be a full, clear, and exact description of said invention, reference beinghad to the accompanying drawings, and to the letters of to reference marked thereon, which form a part of this specification.

My invention relates to improvements in brick-machines, and is designed as an improvement on the machine for which Letters Patent of the United States were granted to me September 8, 1885, No. 325,940.

The object of my invention is to dispense with the heavy bed-plate to which the togglelevers are attached, and also the rods which connect the bell-crank levers, and connect the bell-crank levers which operate the plungers direct with the toggle-levers, said toggle-levers being operated by a pitman in substantially the same manner as in the patent above 2 5 named.

Referring to the drawings, Figure 1 is a longitudinal sectional view of my machine, showing the position of the working parts when the plnngers are exerting their greatest 3o pressure on the clay in the mold. Fig. 2 is a similar view showing the levers in a depressed or lower position and the plungers from pressing contact with the clay.

A indicates the side frame of the machine,

5 which may be of any suitable or desirable construction and of any suitable material, braced or joined together in a suitable manner, and in the front end of which is mounted the mold-boxes and frame B for supporting 1,0 the same.

0 indicates the upper and D the lower bellcrank levers. The be1l-crank lever O is pivoted in the upper part of the frame A at a, while the lower lever D is pivoted in the lower 5 part of the frame at I). These angle or bellcrank levers O and D are for operating the upper and lower plungers E and F, and are connected to the plungers or cross-heads G and H, which support the plungers by means of links I. The crossheads G and H are adapted to work in guides formed on the inside of the frame A, so that they will move in a true vertical direction and always register with the mold boxes. The outer ends of the bell-crank levers O and D are connected to the toggle-levers K direct, one or more of said toggle-levers being used, as occasion may require. The knuckles or jointed portions of the toggle-levers K are connected to the shaft L by means of the slotted pitman M, said pitman being provided with an extended portion N, on which is secured the friction-wheel O.

R is a double cam-plate mounted on the shaft L, and adapted to operate on the pit man M in the following manner: One side.65 of the plate R has a cam-surface S, which is flanged and diverges or radiates from a point on the shaft on which said cam-plate is mounted to a joint f, where it terminates. The other side of the cam-plate R is provided with a cam -surfaoe T, which commences at ornear the joint f, Where cam S terminates, and converges toward the shaft L, terminating at the joint 9 near said shaft.

As the shaft L revolves in the direction of the arrow, the cam S impinges against the front edge of the friction-wheel O and draws the pitman M backward, the slot V allowing the shaft L to pass therethrough and permitting said pitman to be drawn back. This motion straightens the toggles, as shown in Fig. 1, and raises the outer ends at the bellc-rank or angle levers, bringing the plungers E and F toward each other and exerting the proper pressure. Pressure having been exerted to form the brick, the continued rotary motion of the shaft L brings the end of the pitman M, or, rather, the rear face of the friction-wheel, against the flanged portion h of the cam T, which, owing to its convergency 0 toward the axis of shaft L, pushes the pitman M forward, bending the toggles, as shown in Fig. 2, thus moving the plunger E upward and the crosshead H of the lower plunger downward. The lower plunger in the mean- 9 5 time is forced up by the lever A which is operated by the cam 13 on the wheel 0 to eject the newly-foriued brick from the mold, as shown in Fig. 2.

The devices for feedingthe clay to the mold 2. In a brick-machine, the angle or bellcrank levers G and D, pivoted in the sides of the machine, said levers being connected to the plungers by means of links which yield in opposite directions, the outer ends of the angle or bell-crank levers operated from a continuously-revolving shaft.

In testimony whereof I affix my signature in the presence of two subscribing Witnesses.

LEWIS B. KENNEDY. Witnesses:

O. A. SCHNAKE, WM. ZISKA. 

